8#include <botan/tiger.h>
9#include <botan/loadstor.h>
10#include <botan/exceptn.h>
16 return std::unique_ptr<HashFunction>(
new Tiger(*
this));
26 X[0] -=
X[7] ^ 0xA5A5A5A5A5A5A5A5;
29 X[3] -=
X[2] ^ ((~X[1]) << 19);
32 X[6] -=
X[5] ^ ((~X[4]) >> 23);
36 X[1] -=
X[0] ^ ((~X[7]) << 19);
39 X[4] -=
X[3] ^ ((~X[2]) >> 23);
42 X[7] -=
X[6] ^ 0x0123456789ABCDEF;
50void Tiger::compress_n(
const uint8_t input[],
size_t blocks)
52 uint64_t A = m_digest[0], B = m_digest[1], C = m_digest[2];
54 for(
size_t i = 0; i != blocks; ++i)
56 load_le(m_X.data(), input, m_X.size());
58 pass(A, B, C, m_X, 5); mix(m_X);
59 pass(C, A, B, m_X, 7); mix(m_X);
60 pass(B, C, A, m_X, 9);
62 for(
size_t j = 3; j != m_passes; ++j)
65 pass(A, B, C, m_X, 9);
66 uint64_t
T = A; A = C; C = B; B =
T;
69 A = (m_digest[0] ^= A);
70 B = m_digest[1] = B - m_digest[1];
71 C = (m_digest[2] += C);
80void Tiger::copy_out(uint8_t output[])
88void Tiger::pass(uint64_t& A, uint64_t& B, uint64_t& C,
89 const secure_vector<uint64_t>&
X,
156 m_digest[0] = 0x0123456789ABCDEF;
157 m_digest[1] = 0xFEDCBA9876543210;
158 m_digest[2] = 0xF096A5B4C3B2E187;
177 m_hash_len(hash_len),
size_t hash_block_size() const override final
std::unique_ptr< HashFunction > copy_state() const override
size_t output_length() const override
std::string name() const override
Tiger(size_t out_size=24, size_t passes=3)
std::string to_string(const BER_Object &obj)
void zeroise(std::vector< T, Alloc > &vec)
void copy_out_vec_le(uint8_t out[], size_t out_bytes, const std::vector< T, Alloc > &in)
T load_le(const uint8_t in[], size_t off)
constexpr uint8_t get_byte(size_t byte_num, T input)
std::vector< T, secure_allocator< T > > secure_vector